Cannot cancel a expired account

My 2 year subscription has finished and I cancelled my account, I had to give a 30 day notice. I was debited for the next month, I was told this was a mistake and I would be refunded. This did not happen. I was then debited again the next month, again I was told this was a mistake and my contract was cancelled and I would be refunded. My account has again been debited and I was told my account had not been canceled and I would be contacted by someone from accounts to sort this out. I have not been contacted! I will try again tomorrow even though I will be put on hold for hours and be able to accomplish anything.